The neon-lit "Canglan City" appears calm on the surface, but in fact it is a battlefield between the special agent organization "Shadow Bureau" and the mysterious criminal group "Bone Erosion". Ling Che, the former ace agent of the Shadow Bureau, was framed as a traitor due to a mission accident three years ago that resulted in the death of his partner. He has since become anonymous and made a living by performing low-level darknet tasks. He has a rare "star core power" hidden in his body, but he cannot fully control it due to psychological trauma.
One day, Ling Che received a strange commission - to protect Su Wan, a girl with the power of "memory retrospection", and the client turned out to be the new head of the Shadow Bureau whom he had never trusted. What shocked him even more was that the "Star Core Key" in Su Wan's hand was the key item that his partner tried to recapture before his death. Moreover, the "Bone Erosion" group was pursuing Su Wan at all costs, and seemed to want to use the key to awaken the sleeping ancient super weapon.
On one side is the only chance to clear his grievances, and on the other side is the girl who may be counterattacked by supernatural powers at any time. Ling Che is forced to step into the dangerous chess game again. As the investigation deepened, he discovered that the mission three years ago was not an accident. The Shadow Bureau had already been infiltrated by "Bone Erosion", and Su Wan's life experience was inextricably linked to the star core power in his body. A hunt and counterattack related to the survival of the city, spanning the past and the present, begins here.
